File:18 pounder field gun of 96 Field Battery 1938.jpg - Wikipedia
Detailed Organization, American Field Artillery, 105mm Howitzer Battery Armored Field Artillery Battalion, 15 September 1943, Table of Organization 6-167. - The Nafziger Collection of Orders of Battle - Ike Skelton Combined Arms
History of Battery "C," 148th Field Artillery, American Expeditionary Forces; | Library of Congress
New Field Ordnance Battery Deep Dive! - YouTube
electricity - How does the electric field produced by a battery get transferred along a relatively long wire connecting the ends of the battery together? - Physics Stack Exchange